public ExcelParamCollection GetExcelParams(string templateName)
{
ExcelParamCollection collection = null;
var cachedParams = GetCachedExcelParams();
cachedParams.TryGetValue(templateName, out collection);
return(collection);
}
private IDictionary <string, ExcelParamCollection> GetCachedExcelParams()
{
var cachedParams = _cacheService.Get <IDictionary <string, ExcelParamCollection> >(EXCEL_PARAMS_CACHE_NAME);
if (cachedParams == null)
{
cachedParams = new Dictionary <string, ExcelParamCollection>();
XDocument doc = XDocument.Load(_webHelper.ExcelParamConfigFile);
var excelParams = doc.Element("ExcelParams");
if (excelParams != null)
{
foreach (var templateElement in excelParams.Elements("Template"))
{
var templateName = templateElement.Attribute("name")?.Value;
var collection = new ExcelParamCollection()
{
TemplateName = templateName
};
foreach (var param in templateElement.Elements("Param"))
{
var paramName = param.Attribute("name");
if (paramName != null)
{
collection[paramName.Value] = param.Value; // if there are 2 parmas with the same key, last param is used
}
}
cachedParams[templateName] = collection;
}
}
_cacheService.Set(EXCEL_PARAMS_CACHE_NAME, cachedParams);
}
return(cachedParams);
}
private IDictionary <string, ExcelParamCollection> GetCachedExcelParams()
{
var cachedParams = System.Web.HttpContext.Current.Cache[EXCEL_PARAMS_CACHE_NAME] as IDictionary <string, ExcelParamCollection>;
if (cachedParams == null)
{
cachedParams = new Dictionary <string, ExcelParamCollection>();
XDocument doc = XDocument.Load(_webHelper.ExcelParamConfigFile);
foreach (var templateElement in doc.Element("ExcelParams").Elements("Template"))
{
var templateName = templateElement.Attribute("name").Value;
var collection = new ExcelParamCollection()
{
TemplateName = templateName
};
foreach (var param in templateElement.Elements("Param"))
{
collection[param.Attribute("name").Value] = param.Value; // if there are 2 parmas with the same key, last param is used
}
cachedParams[templateName] = collection;
}
System.Web.HttpContext.Current.Cache.Add(
EXCEL_PARAMS_CACHE_NAME,
cachedParams,
new System.Web.Caching.CacheDependency(_webHelper.ExcelParamConfigFile),
System.Web.Caching.Cache.NoAbsoluteExpiration,
TimeSpan.FromMinutes(60), // hard-code 60 minutes
System.Web.Caching.CacheItemPriority.Normal,
null);
}
return(cachedParams);
}